The pileus is fleshy, soft, flexible, convex, to expanded, or obconic, plane or depressed, or funnel-shaped, the margin strongly inrolled when young, in age simply incurved, the margin plane or repand and undulate.
"Studies of American Fungi. Mushrooms, Edible, Poisonous, etc."
George Francis Atkinson
Leaves lanceolate, undulate, downy.
"The Medicinal Plants of the Philippines"
T. H. Pardo de Tavera
Stamens 5. Anthers of irregular shape, peltate, with the borders deeply undulate.
"The Medicinal Plants of the Philippines"
T. H. Pardo de Tavera